The Royal College of Art in Battersea has unveiled its latest 'secret' art sale.
Watch the video to find out what the secret is, and how you can get your hands on some postcard-sized original artworks.
Find out more about RCA Secret here
The Royal College of Art is holding its annual secret postcard sale in ten days time at its centre in Battersea. Hundreds of postcard-sized artworks are up for sale but buyers won't know who the artist is until they buy one and then check the signature on the back.